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What size cables can be terminated into NSX400-630 MCCBs when fitted inside an NS MCCB feeder pillar.

Compact NSX MCCB types NSX630 / NSX400 accept cables up to 185mm with standard width cable lugs, if terminating 240 or 300mm cables then 52mm cable spreaders or the special MG reduced width cable lugs should be used. (NB. the above is based on a single core Cu cables)